"小灰尘"是个多义词，它可以指小灰尘（素心萤火小说）,小灰尘（陈珊妮演唱歌曲）。
阳光照耀着空气中的小灰尘。
他看了又看，什么也没发现，只有一个小灰尘粒从空中飘过。
He could see nothing there but a small speck of dust blowing past through the air.
手表尺寸虽小内部结构确非常复杂且精密，一点点小灰尘或是衣物纤维都会影响手表的走时。
Watch size is small and the internal structure is very complex and sophisticated, a little bit of dust or clothing fibers will affect the time of the watch.
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